ATOMIC NUMBER & MASS NUMBER
|
|
Name of Element |
Symbol |
Atomic # |
# of protons |
# of electrons |
|
1. |
OXYGEN |
|
|
|
|
|
2. |
|
Ca |
|
|
|
|
3. |
|
|
53 |
|
|
|
4. |
|
|
|
11 |
|
|
5. |
|
|
|
|
47 |
|
6. |
|
|
|
|
16 |
|
7. |
|
|
|
80 |
|
|
8. |
|
|
26 |
|
|
|
9. |
|
Si |
|
|
|
|
10. |
MAGNESIUM |
|
|
|
|
Complete the following chart. Remember: mass number = # of protons + # of neutrons
|
|
Name of Element |
Symbol |
Atomic # |
Mass # |
# of protons |
# of neutrons |
# of electrons |
|
11. |
NEON |
|
|
20 |
|
|
|
|
12. |
|
Co |
|
|
|
32 |
|
|
13. |
|
|
79 |
197 |
|
|
|
|
14. |
|
|
|
|
17 |
18 |
|
|
15. |
|
|
|
|
|
142 |
90 |
|
16. |
|
|
|
207 |
|
125 |
|
|
17. |
|
|
28 |
59 |
|
|
|
|
18. |
|
|
14 |
|
|
14 |
|
|
19. |
POTASSIUM |
|
|
|
|
20 |
|
|
20. |
|
|
|
|
74 |
110 |
|